Since it is not a close circuit , you can change you hoses easily. Just remove the one thats on the fridge , on the lower right corner and all water will go down the floor and not the engine. Then press all tubes to clean remaining fluid , change all pipes with new and start filling water. Don;t worry for trapped air, as soon as you start engine water will circulate and from the tank you can add all the water is missing or clean the system as the way i described above.
Now that i am thinking about it , before changing pipes , change water and use soap to clean mud, clean with soap and replace with fresh water to clean the system, drain water as above, replace pipes , fill in with antifreeze/coolant , start engine , accelerate engine several time to circulate fluid and add when it is needed.
Last edited by Greek; 25-05-10 at 18:03.